Best Harvest Prcedure for Fresh Frozen

I plan on turning hopefully around 500-1000g fresh material here at harvest in a few weeks into bubble hash and then press it into live rosin.
What is best process for harvesting?
I'll be harvesting 3-4 plants and then I need to take them around 1.5 hours away.
My plan was to maybe buy some dry ice and harvest the plants into individual baggies and then put that into a cooler with dry ice and then make the drive the following morning?
How should I harvest? Should I buck all individual buds off into ziplocks and then freeze them?
What's your process! Any and all input is appreciated!

They’re a lot of money but if you know someone with a freeze dryer.

Just pull em, put in paper bags, drive to where you're going and freeze them once you're there, an hour and a half will make no difference. I use frozen dried bud/trim for bubble hash with no issues.